﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.Graphics.Display;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Data;

namespace LifecycleSample.Common
{
  /// <summary>
  /// Value converter that translates true to <see cref="Visibility.Visible"/> and false to
  /// <see cref="Visibility.Collapsed"/>.
  /// </summary>
  public sealed class BooleanToVisibilityConverter : IValueConverter
  {
    public object Convert(object value, Type targetType, object parameter, string language)
    {
      return (value is bool && (bool)value) ? Visibility.Visible : Visibility.Collapsed;
    }

    public object ConvertBack(object value, Type targetType, object parameter, string language)
    {
      return value is Visibility && (Visibility)value == Visibility.Visible;
    }
  }
}
